﻿using System;
using Xpedite.Resources.Loaders;
using Xpedite.Resources.Minifiers;

/* Copyright (c) 2010 CBaxter
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 
 * IN THE SOFTWARE. 
 */

namespace Xpedite.Resources.Builders
{
  internal class CssResourceBuilder : IResourceBuilder
  {
    private readonly IResourceLoaderFactory _resourceLoaderFactory;
    private readonly IMinifierFactory _minifierFactory;
    private readonly IResourceUrl _resourceUrl;

    public CssResourceBuilder(IResourceUrl resourceUrl, IMinifierFactory minifierFactory, IResourceLoaderFactory resourceLoaderFactory)
    {
      Verify.NotNull(resourceUrl, "resourceUrl");
      Verify.NotNull(minifierFactory, "minifierFactory");
      Verify.NotNull(resourceLoaderFactory, "resourceLoaderFactory");

      _resourceUrl = resourceUrl;
      _minifierFactory = minifierFactory;
      _resourceLoaderFactory = resourceLoaderFactory;
    }

    public IResourceContainer Build()
    {
      return new ResourceContainer(
          ResourceType.Css,
          _resourceUrl,
          () =>
          {
            ResourceData data = _resourceLoaderFactory.Create(_resourceUrl).LoadData();
            String content = _minifierFactory.Create(ResourceType.Css).Minify(data.Encoding.GetString(data.Bytes));

            return new Resource
              {
                Type = ResourceType.Css,
                Bytes = data.Encoding.GetBytes(content),
                LastModified = data.LastModified,
                Encoding = data.Encoding,
                Compressable = true
              };
          }
        );
    }
  }
}
